I am using a Rem 700, McMillan M40A1 stock, Atlas Werks bottom metal. I was mocking it up for fitting the pillars. Even without the pillars and the bottom metal fitted flush against the bottom of the action the round would not be picked up. In fact I had trouble originally the bolt picking any of them up. I finally cut the rear portion of the bottom metal down so it fit the radius of the bottom of the action and now it feeds perfectly. I don't know if thats the right thing to do but it seems to work now. I measured the distance and cut my pillars to fit that distance with and added .010 and just finished epoxying them into the stock getting ready for bedding now.